SDO HMI 2011-11-13 11:58:58 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing)
(It is recommended to set high resolution on your display!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 9.03 | 34.67 | 8.24 | 30.90 | -24.84 | 87.03 | 50.13 | 237.02 | 0.8313 | 278.7 | -21.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-11-13 11:58:58 UT
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing) (It is recommended to set high resolution on your display!) |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 8.60 | 25.29 | 7.85 | 23.19 | -24.71 | 88.36 | 51.46 | 237.78 | 0.8420 | 638.7 | 57.3 | |
| 0.00 | 1.46 | 0.00 | 1.32 | -24.83 | 87.90 | 51.00 | 237.47 | 0.8387 | 655.0 | 476.7 | |
| 0.43 | 1.63 | 0.39 | 1.47 | -25.28 | 87.59 | 50.69 | 236.84 | 0.8378 | 533.8 | 399.9 | |
| 0.00 | 1.12 | 0.00 | 0.88 | -25.63 | 80.58 | 43.67 | 233.14 | 0.7805 | -578.0 | -431.2 | |
| 0.00 | 2.41 | 0.00 | 1.88 | -25.08 | 80.28 | 43.38 | 233.61 | 0.7751 | -546.0 | -468.5 | |
| 0.00 | 1.81 | 0.00 | 1.42 | -25.35 | 80.36 | 43.46 | 233.34 | 0.7771 | -762.0 | -573.5 | |
| 0.00 | 0.95 | 0.00 | 0.74 | -25.55 | 80.27 | 43.36 | 233.06 | 0.7773 | -556.0 | -484.0 | |
| Proj. U | - Projected umbra area in millionths of solar disc, negative values indicate | |
|
that the umbra consists of fragmented regions which cannot be separated without losing umbral area. In this way several spots (intensity minima in the umbra) have a common umbra, e.g. -2 means that the given spot shares an umbra with spot No.2, and the common U value is indicated at spot No.2. |
||
| Proj. WS | - Projected whole spot area in millionths of solar disc, negative values indicate | |
|
that several umbras have a common penumbra, e.g. -7 means that the given umbra shares a penumbra with umbra No.7, and the WS value is indicated at No.7. |
||
| Corr. U | - Corrected umbra area in millionths of solar hemisphere, for negative values see above | |
| Corr. WS | - Corrected whole spot area in millionths of solar hemisphere, for negative values see above | |
| B | - Heliographic latitude B; positive: North, negative: South | |
| L | - Heliographic longitude L | |
| LCM | - Longitudinal distance from the Sun's central meridian | |
| Pos. angle | - Position angle | |
| r | - Distance from the centre of Sun's disc in terms of Sun's radius | |
| MU | - Mean magnetic field within the umbra contour averaged the pixel values with sign. | |
| MP | - Mean magnetic field within the penumbra contour averaged the pixel values with sign. | |